2 Samuel 18:24

18:24 Now David was sitting between the inner and outer gates, and the watchman went up to the roof over the gate at the wall. When he looked, he saw a man running by himself.

2 Samuel 18:27

18:27 The watchman said, “It appears to me that the first runner is Ahimaaz son of Zadok.” The king said, “He is a good man, and he comes with good news.”